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標題: hello everyone [打印本頁]

作者: celeron_266 時間: 2007-11-29 10:15 標題: hello everyone

hello people

its nice to see there is a subforum in helping each other for homework problems.....i enjoy helping people in high school/university math and science...so feel free to post any questions here

作者: notgoddy 時間: 2007-11-29 11:10

yeah... there is a subforum for EVERYTHING.

haha

作者: its_visa 時間: 2007-11-29 11:19

free tutor! hahaha nice~

too bad im not taking either those in Uni yet lol~

作者: Caffie 時間: 2007-11-30 00:28

正呀! 我有好多Math 11 questions 哈哈哈... 得閒post 上嚟問吓先

作者: puZZle 時間: 2007-11-30 02:37

bleh I gave up math

作者: Caffie 時間: 2007-11-30 03:38

原帖由 puZZle 於 2007-11-30 02:37 發表
bleh I gave up math

Since when?
I want to give up math too but can't... at least a couple more months to go for me (if not taking Math 12)

作者: celeron_266 時間: 2007-11-30 11:04

if you dont wanna go to a university giving up math 12 is fine....if not......you better take it...

作者: puZZle 時間: 2007-12-3 13:17

原帖由 Caffie 於 2007-11-30 03:38 發表

Since when?
I want to give up math too but can't... at least a couple more months to go for me (if not taking Math 12)

o in college/univ

studying arts in ubc
don't really need math

作者: celeron_266 時間: 2007-12-3 13:20

i thought you need at least one math course..

作者: Caffie 時間: 2008-4-29 23:07

Stupid question, but 呢題點做?

If f(x) = x - 5 and g(x) = x^2 - 3 determine:
f(x^2 - 2) - g(x - 5)

It's supposed to be really easy but I totally forgot how to do it when I got home after class...

作者: myversa 時間: 2008-4-30 07:54

f(x^2 - 2) - g(x - 5)
((x^2 - 2) - 5) - ((x - 5)^2 - 3)
x^2 - 7 - (x^2 - 10x + 25 -3)
x^2 -7 - x^2 + 10x - 25 + 3
10x - 29

???

I do not know... I have not touched math for more than 10 years other than simple calculations...

[ 本帖最後由 myversa 於 2008-4-30 08:04 編輯 ]

作者: celeron_266 時間: 2008-4-30 09:22

ok lets see...math 12....transformation chapter correct?

versa's solution is correct

作者: KK1 時間: 2008-4-30 11:48

原帖由 myversa 於 2008-4-30 07:54 發表
f(x^2 - 2) - g(x - 5)
((x^2 - 2) - 5) - ((x - 5)^2 - 3)
x^2 - 7 - (x^2 - 10x + 25 -3)
x^2 -7 - x^2 + 10x - 25 + 3
10x - 29

???

I do not know... I have not touched math for more than 10 years other ...

you're correct!

作者: myversa 時間: 2008-4-30 12:06

It took me some times to figure out what's (x - 5)^2 .....

I am getting old...

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